ManTech seeks a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in Chantilly, VA. Principal Cyber Security engineers are responsible for the quality of cyber security related solution delivery, development, testing and deployment in support of cyber security initiatives. They are involved in creating quality cyber solution components based on the provided requirements.  The successful candidate must possess the ability to work in a team environment as well as independently.Responsibilities include but are not limited to:Maintaining operations of identity and access management services including directory, access, identity, and privileged access management servicesMaintaining infrastructure in cloud or other virtualized environmentsPerforming Linux based system upgrades and patchesProviding COTS software installation and customization and automationMaintaining the sustainment of a Multi Factor Authentication (MFA) solutionManaging Continuous Monitoring (CONMON) activitiesMaintaining Authority to Operate (ATO)Providing status reports in an Agile environmentPeriodically providing after-hour supportMentoring Junior level staff in engineering principalsMinimum Qualifications:Bachelor’s degree in an information Technology field or 4+ years of additional experience in lieu of degree7+ years of working experience in the IT fieldMust have or be willing to obtain IAT Level II certifications within 6 months of hireExperience working in LINUX environmentsKnowledge of LDAP directory and managing databasesAbility to create scripts to assist with automation effortsPreferred Qualifications:Experience with Ansible, and writing automation playbooksExperience with PKI principalsExperience working in an Agile environmentExperience working in a Dev/Ops environmentKnowledge of Identity and Access Management principalsExperience working in multi-disciplined teamsClearance Requirements:Must have a current/active TS/SCI w/PolygraphPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.